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EP3331664B1 - Centring clamping apparatus - Google Patents

Centring clamping apparatus Download PDF

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Publication number
EP3331664B1
EP3331664B1 EP16766836.7A EP16766836A EP3331664B1 EP 3331664 B1 EP3331664 B1 EP 3331664B1 EP 16766836 A EP16766836 A EP 16766836A EP 3331664 B1 EP3331664 B1 EP 3331664B1
Authority
EP
European Patent Office
Prior art keywords
centering
clamping apparatus
blocking
finger
longitudinal axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16766836.7A
Other languages
German (de)
French (fr)
Other versions
EP3331664A1 (en
Inventor
Andreas NEBEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DESTACO Europe GmbH
Original Assignee
DESTACO Europe GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DESTACO Europe GmbH filed Critical DESTACO Europe GmbH
Priority to SI201631241T priority Critical patent/SI3331664T1/en
Publication of EP3331664A1 publication Critical patent/EP3331664A1/en
Application granted granted Critical
Publication of EP3331664B1 publication Critical patent/EP3331664B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/061—Arrangements for positively actuating jaws with fluid drive
    • B25B5/064—Arrangements for positively actuating jaws with fluid drive with clamping means pivoting around an axis perpendicular to the pressing direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/166—Slideways; Guiding and/or blocking means for jaws thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/18—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
    • B23Q3/183—Centering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/08—Arrangements for positively actuating jaws using cams
    • B25B5/087—Arrangements for positively actuating jaws using cams actuated by a hydraulic or pneumatic piston

Definitions

  • the invention relates to a centering clamping device according to the preamble of claim 1.
  • a centering clamping device of the type mentioned is from EP 0 894 572 A1 known.
  • This centering clamping device consists of a housing in which a centering element is mounted displaceably along a longitudinal axis between an open position and a clamping position, a finger element mounted transversely to the longitudinal axis between a retracted and an extended position being provided on the centering element, the finger element with an im Centering element displaceably mounted actuator is operatively connected.
  • the invention is based on the object of improving a centering clamping device of the type mentioned at the beginning.
  • a centering clamping device is to be created with a sequence of movements that is precisely coordinated with regard to the interaction of centering element and finger element.
  • a blocking device is provided on the centering element which excludes a relative movement between the housing and the centering element when the finger element is fully retracted or a relative movement between the centering element and the actuator when the finger element is fully extended.
  • the centering clamping device is characterized in that the blocking device ensures that in certain situations either a relative movement between the centering element and the housing or a relative movement between the centering element and the actuator is excluded.
  • the blocking device ensures that in certain situations either a relative movement between the centering element and the housing or a relative movement between the centering element and the actuator is excluded.
  • the above-mentioned open position is the position in which the centering element is in an extended, "upper” position and the finger element is in the retracted position ("inside” the centering element).
  • the above-mentioned clamping position is the position in which the centering element is in a retracted, "lower” position and the finger element is in an extended position ("outside” the centering element).
  • the sequence of movements according to the invention is therefore - starting from the open position - characterized in that a movement of the actuator (downwards) initially leads to the extension of the finger element. If this is extended, the further movement of the actuator leads to a movement of the centering element (downwards) until the clamping position is reached, i.e.
  • the workpiece is firmly clamped between the finger element and the housing of the clamping device. If the clamping position is to be released again at a different point in time, a movement of the actuator (upwards) initially leads to a movement of the centering element (upwards), the finger element still being extended. At the latest when the centering element has reached the extended, "upper" position, a further movement of the actuator leads to the retraction of the finger element, ie a position of the clamping device in which the workpiece can be removed from the centering element.
  • the use of the blocking device according to the invention thus leads to an improved coordination of the movement sequences, which has a very advantageous effect, for example (this will be discussed in more detail below) in metal sheets with centering holes whose edges are raised, since this one at the previous clamping device jamming of the finger element with the sheet metal can be avoided.
  • the centering clamping device shown in the figures consists in a known manner initially of a housing 1 in which a preferably at least partially hollow cylindrical centering element 2 is mounted displaceably between an open position and a clamping position along a longitudinal axis, with a transverse or perpendicular to the centering element 2 Longitudinal axis between a retracted and an extended position displaceably mounted finger element 3 is provided, wherein the finger element 3 is operatively connected to a preferably cylindrical actuator 4 mounted displaceably in the centering element 2.
  • a link guide 8 is arranged between the finger element 3 and the actuator 4. How out Figure 2 results, this is formed from a slit 8.2, groove or the like running obliquely to the longitudinal axis on the finger element 3 and from a feather key-like element 8.1, pin or the like guided in the slot 8.2 on the actuator 4 or vice versa. So if the actuator is 4 in Figure 2 shifted upwards, this leads to the fact that the finger element 3 is retracted, and vice versa.
  • a blocking device 5 excluding a relative movement between the centering element 2 and the actuator 4 is provided on the centering element 2, either when the finger element 3 is completely retracted, a relative movement between the housing 1 and the centering element 2 or when the finger element 3 is fully extended.
  • this requirement ensures that a collision between the finger element 3 and the workpiece 9, which has an upstanding collar 9.1, is avoided, since according to the invention it is ensured that the retraction and extension of the finger element 3 is always at least partially extended
  • the centering element 2 is positioned, that is, when the finger element 3 is no longer in contact with the workpiece 9.
  • the blocking device 5 which interacts on the one hand with the housing 1 and on the other hand with the actuator 4 and is arranged on the centering element 2, it is particularly preferred that it comprises a blocking element 5.1 that is displaceable transversely to the longitudinal axis. As shown, two or more of these blocking elements 5.1 can also be provided. It is particularly preferably provided that the blocking element 5.1 is designed as a body having a circular cross section at least in one spatial direction. If the body is designed as a cylindrical bolt, it accordingly has a circular cross-section or a cylindrical outer contour in exactly one spatial direction. This embodiment is not shown separately below, but it can also be implemented and is fully functional. If the blocking element 5.1, which is preferred and shown, is designed as a sphere, it has a circular cross-section or a spherical surface in all spatial directions.
  • the blocking element 5.1 it is furthermore particularly preferred, as can be seen, that it is free of guide elements engaging in its body.
  • a guide 2.1 for the blocking element 5.1 is provided on the centering element 2, it is furthermore particularly preferred that one or the length of the guide 2.1 is shorter than a corresponding length or diameter when viewed transversely to the longitudinal axis of the blocking element 5.1 is formed.
  • Blocking element 5.1 allowing a relative movement between the centering element 2 and the actuator 4 or the blocking element 5.1, which is in contact with the other track section 6.2, is designed to prevent such a movement.
  • a stop device 7 is provided to limit the displaceability of the actuator 4 to the centering element 2 on both sides, which consists of a stop element 7.1 arranged on the actuator 4 and on both sides of the stop element 7.1 (above and below) on the centering element 2 arranged abutments 7.2 is formed. Furthermore, a distance between the two abutments 7.2 that is parallel to the longitudinal axis is larger than an extension of the stop element 7.1 that is parallel to the longitudinal axis.
  • the one abutment 7.2 is firmly but detachably connected to the centering element 2.
  • the centering element 2 has a cylindrical guide space 2.2 for guiding the stop element, the two abutments 7.2 also preferably each forming a wall area of the guide space 2.2.
  • the blocking element 5.1 is designed to interact with the stop element 7.1 (known from the prior art mentioned above). It is also particularly preferably provided that the stop element 7.1 has two sections 7.1.1, 7.1.2 as seen in the direction of the longitudinal axis.
  • the first section 7.1.1 has a cylindrical outer contour that matches the guide space 2.2. In other words, this means that the first section 7.1.1 is designed to hold the blocking element 5.1 out of the guide space 2.2.
  • the second section 7.1.2 is designed as a hyperboloid, with a largest diameter of the hyperboloid preferably corresponding to the diameter of the first section 7.1.1, and in addition the axis of rotation of the hyperboloid coincides with the longitudinal axis of the centering element.
  • the second section 7.1.2 is designed as a guide curve for the blocking element 5.1, the transition from the first to the second section thus not being continuous (in the mathematical sense), but without jumps.
  • the bodies or balls, which have a circular cross-section, can therefore slide well along the stop element 7.1.
  • the centering clamping device according to the invention works as follows: The starting point for the explanation is Figure 4 . There the centering clamping device according to the invention is shown in the open position with the workpiece 9 placed on it (a sheet metal with a round opening and a collar 9.1 around the opening). The actuator 4 is in its highest position, the section 7.1.1 of the stop element 7.1 pressing the blocking element 5.1 outwards against the track section 6.2 and thus preventing a relative movement (downwards) between the housing 1 and the centering element 2 (upwards such a prevented by suitable shoulders on the housing 1 and on the centering element 2).
  • Figure 5 shows the next setting step, in which the actuator 4, for example with the help of a suitable (cf. Figures 1 and 3 ) the pneumatic drive has been moved down until the first section 7.1.1 reaches the lower abutment 7.2 of the stop device 7.
  • the aforementioned adjustment leads to the fact that the two finger elements 3, which are shown in FIG Figure 4 are still retracted, are now being extended.
  • the (at least one) blocking element 5.1 here the two Balls
  • FIG 8 the clamping position is shown in which the inversely hook-shaped finger elements 3, which have a recess for receiving a collar 9.1 of a workpiece 9 in the extended state on the centering and blocking element side, press the workpiece 9 against a corresponding support on the housing 1 of the centering clamping device.
  • the two bodies or balls in this position together with the first track section 6.1 have the effect that the centering element 2 and the actuator 4 are fixed to one another, i.e. a relative movement between the two is excluded.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Clamps And Clips (AREA)
  • Manipulator (AREA)

Description

Die Erfindung betrifft eine Zentrierspannvorrichtung gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a centering clamping device according to the preamble of claim 1.

Eine Zentrierspannvorrichtung der eingangs genannten Art ist aus der EP 0 894 572 A1 bekannt. Diese Zentrierspannvorrichtung besteht aus einem Gehäuse, in dem ein Zentrierelement zwischen einer Öffnungsstellung und einer Spannstellung entlang einer Längsachse verschieblich gelagert ist, wobei am Zentrierelement ein quer zur Längsachse zwischen einer eingefahrenen und einer ausgefahrenen Position verschieblich gelagertes Fingerelement vorgesehen ist, wobei das Fingerelement mit einem im Zentrierelement verschieblich gelagerten Stellglied wirkverbunden ist. Die obige Maßgabe, dass ein Fingerelement vorgesehen ist, bedeutet im Rahmen der hier beschriebenen Erfindung, dass stets mindestens ein Fingerelement vorgesehen ist, wobei tatsächlich bei der oben beschriebenen Lösung und auch bei einer bevorzugten Ausführungsform der noch zu erläuternden Erfindung zwei Fingerelemente vorgesehen sind.A centering clamping device of the type mentioned is from EP 0 894 572 A1 known. This centering clamping device consists of a housing in which a centering element is mounted displaceably along a longitudinal axis between an open position and a clamping position, a finger element mounted transversely to the longitudinal axis between a retracted and an extended position being provided on the centering element, the finger element with an im Centering element displaceably mounted actuator is operatively connected. The above requirement that a finger element is provided means within the scope of the invention described here that at least one finger element is always provided, with two finger elements actually being provided in the above-described solution and also in a preferred embodiment of the invention to be explained.

Der Erfindung liegt die Aufgabe zugrunde, eine Zentrierspannvorrichtung der eingangs genannten Art zu verbessern. Insbesondere soll eine Zentrierspannvorrichtung mit einem bezüglich des Zusammenspiels von Zentrierelement und Fingerelement genau koordinierten Bewegungsablauf geschaffen werden.The invention is based on the object of improving a centering clamping device of the type mentioned at the beginning. In particular, a centering clamping device is to be created with a sequence of movements that is precisely coordinated with regard to the interaction of centering element and finger element.

Diese Aufgabe ist mit einer Zentrierspannvorrichtung der eingangs genannten Art durch die im Patentanspruch 1 aufgeführten Merkmale gelöst.This object is achieved with a centering clamping device of the type mentioned at the outset by the features listed in claim 1.

Nach der Erfindung ist also vorgesehen, dass am Zentrierelement eine entweder bei vollständig eingefahrenem Fingerelement eine Relativbewegung zwischen dem Gehäuse und dem Zentrierelement oder bei vollständig ausgefahrenem Fingerelement eine Relativbewegung zwischen dem Zentrierelement und dem Stellglied ausschließende Blockiereinrichtung vorgesehen ist.According to the invention, it is provided that a blocking device is provided on the centering element which excludes a relative movement between the housing and the centering element when the finger element is fully retracted or a relative movement between the centering element and the actuator when the finger element is fully extended.

Mit anderen Worten zeichnet sich die erfindungsgemäße Zentrierspannvorrichtung somit dadurch aus, dass mit Hilfe der Blockiereinrichtung gewährleistet wird, dass in bestimmten Situationen entweder eine Relativbewegung zwischen dem Zentrierelement und dem Gehäuse oder eine Relativbewegung zwischen dem Zentrierelement und dem Stellglied ausgeschlossen wird. Etwas genauer betrachtet, ist insbesondere vorgesehen, dass immer dann, wenn das Fingerelement vollständig in das Zentrierelement eingefahren ist, eine Relativbewegung zwischen dem Zentrierelement und dem Gehäuse ausgeschlossen ist, was zur Folge hat, dass eine Bewegung des Stellgliedes zunächst ausschließlich das Ausfahren des Fingerelements bewirkt. Ist dann das Fingerelement ausgefahren, führt eine weitere Bewegung des Stellgliedes zu einer Bewegung des Zentrierelements in Bezug auf das Gehäuse. Außerdem ist gleichzeitig vorgesehen, dass immer dann, wenn das Fingerelement vollständig ausgefahren ist, eine Relativbewegung zwischen dem Zentrierelement und Stellglied ausgeschlossen ist, was zur Folge hat, dass eine Bewegung des Stellgliedes zunächst ausschließlich das Verfahren bzw. Ausfahren des Zentrierelements bewirkt. Ist dann das Zentrierelement ausgefahren, führt eine weitere Bewegung des Stellgliedes zu einer Bewegung des Fingerelements in Bezug auf das Zentrierelement.In other words, the centering clamping device according to the invention is characterized in that the blocking device ensures that in certain situations either a relative movement between the centering element and the housing or a relative movement between the centering element and the actuator is excluded. Considered more closely, provision is made in particular that whenever the finger element is completely retracted into the centering element, a relative movement between the centering element and the housing is excluded, with the result that a movement of the actuator initially only causes the finger element to extend . If the finger element is then extended, a further movement of the actuator leads to a movement of the centering element in relation to the housing. It is also provided at the same time that whenever the finger element is fully extended, a relative movement between the centering element and actuator is excluded, which means that a movement of the actuator initially only causes the centering element to move or extend. If the centering element is then extended, a further movement of the actuator leads to a movement of the finger element in relation to the centering element.

Die oben genannte Öffnungsstellung ist dabei die Stellung, bei der sich das Zentrierelement in einer ausgefahrenen, "oberen" Position und das Fingerelement in der eingefahrenen Position ("innerhalb" des Zentrierelements) befindet. Die oben genannte Spannstellung ist dabei die Stellung, bei der sich das Zentrierelement in einer eingefahrenen, "unteren" Position und das Fingerelement in einer ausgefahrenen Position ("außerhalb" des Zentrierelements) befindet. Der erfindungsgemäße Bewegungsablauf ist also - ausgehend von der Öffnungsstellung - dadurch gekennzeichnet, dass eine Bewegung des Stellgliedes (nach "unten") zunächst zum Ausfahren des Fingerelements führt. Ist dieses ausgefahren, führt die weitere Bewegung des Stellgliedes zu einer Bewegung des Zentrierelements (nach "unten"), und zwar bis die Spannstellung erreicht ist, das Werkstück also zwischen dem Fingerelement und dem Gehäuse der Spannvorrichtung fest eingespannt ist. Soll nun zu einem anderen Zeitpunkt die Spannstellung wieder gelöst werden, führt eine Bewegung des Stellgliedes (nach "oben") zunächst zu einer Bewegung des Zentrierelements (nach "oben"), wobei das Fingerelement dabei nach wie vor ausgefahren ist. Spätestens wenn das Zentrierelement die ausgefahrene, "obere" Position erreicht hat, führt eine weitere Bewegung des Stellgliedes zum Einfahren des Fingerelements, also einer Stellung der Spannvorrichtung, bei der das Werkstück vom Zentrierelement entfernt werden kann.The above-mentioned open position is the position in which the centering element is in an extended, "upper" position and the finger element is in the retracted position ("inside" the centering element). The above-mentioned clamping position is the position in which the centering element is in a retracted, "lower" position and the finger element is in an extended position ("outside" the centering element). The sequence of movements according to the invention is therefore - starting from the open position - characterized in that a movement of the actuator (downwards) initially leads to the extension of the finger element. If this is extended, the further movement of the actuator leads to a movement of the centering element (downwards) until the clamping position is reached, i.e. the workpiece is firmly clamped between the finger element and the housing of the clamping device. If the clamping position is to be released again at a different point in time, a movement of the actuator (upwards) initially leads to a movement of the centering element (upwards), the finger element still being extended. At the latest when the centering element has reached the extended, "upper" position, a further movement of the actuator leads to the retraction of the finger element, ie a position of the clamping device in which the workpiece can be removed from the centering element.

Wie aus obigen Erläuterungen folgt, führt der Einsatz der erfindungsgemäßen Blockiereinrichtung somit zu einer verbesserten Koordination der Bewegungsabläufe, was sich insbesondere zum Beispiel (hierauf wird unten noch genauer eingegangen) bei Blechen mit Zentrierlöchern, deren Ränder hochstehend ausgebildet sind, sehr vorteilhaft auswirkt, da bei diesen ein bei den bisherigen Spannvorrichtung auftretendes Verklemmen des Fingerelements mit dem Blech vermieden werden kann.As follows from the above explanations, the use of the blocking device according to the invention thus leads to an improved coordination of the movement sequences, which has a very advantageous effect, for example (this will be discussed in more detail below) in metal sheets with centering holes whose edges are raised, since this one at the previous clamping device jamming of the finger element with the sheet metal can be avoided.

Andere vorteilhafte Weiterbildungen der erfindungsgemäßen Zentrierspannvorrichtung ergeben sich aus den abhängigen Patentansprüchen.Other advantageous developments of the centering clamping device according to the invention emerge from the dependent claims.

Der Vollständigkeit halber wird noch auf die Dokumente US 2016/0129558 A1 und EP 1 830 983 B1 und EP 2 164 677 B1 hingewiesen.For the sake of completeness, reference is made to the documents US 2016/0129558 A1 and EP 1 830 983 B1 and EP 2 164 677 B1 pointed out.

Die erfindungsgemäße Zentrierspannvorrichtung einschließlich ihrer vorteilhaften Weiterbildungen gemäß der abhängigen Patentansprüche wird nachfolgend anhand der zeichnerischen Darstellung eines bevorzugten Ausführungsbeispiels näher erläutert.The centering clamping device according to the invention, including its advantageous developments according to the dependent claims, is explained in more detail below with reference to the drawing of a preferred exemplary embodiment.

Es zeigt

Figur 1
teilweise geschnitten die erfindungsgemäße Zentrierspannvorrichtung in Spannstellung mit ausgefahrenen, umgekehrt hakenförmigen Fingerelementen;
Figur 2
perspektivisch und teilweise geschnitten die Kulissenführung im Kopf des Zentrierelements zur Betätigung der umgekehrt hakenförmigen Fingerelemente mit dem Stellglied;
Figur 3
perspektivisch die Zentrierspannvorrichtung gemäß Figur 1; und
Figur 4 bis 11
die erfindungsgemäße Zentrierspannvorrichtung gemäß Figur 1 größtenteils im Schnitt in unterschiedlichen Stellungen, wobei Figur 4 die Öffnungsstellung, Figur 8 die Spannstellung und die übrigen Figuren entsprechende Zwischenstellungen zeigen.
It shows
Figure 1
partially sectioned the centering clamping device according to the invention in the clamping position with extended, inverted hook-shaped finger elements;
Figure 2
in perspective and partially cut, the link guide in the head of the centering element for actuating the inverted hook-shaped finger elements with the actuator;
Figure 3
perspective the centering clamping device according to Figure 1 ; and
Figures 4 to 11
the centering clamping device according to the invention according to Figure 1 mostly on average in different positions, with Figure 4 the open position, Figure 8 the clamping position and the other figures show corresponding intermediate positions.

Die in den Figuren dargestellte Zentrierspannvorrichtung besteht in an sich bekannter Weise zunächst aus einem Gehäuse 1, in dem ein vorzugsweise mindestens teilweise hohlzylindrisches Zentrierelement 2 zwischen einer Öffnungsstellung und einer Spannstellung entlang einer Längsachse verschieblich gelagert ist, wobei am Zentrierelement 2 ein quer bzw. senkrecht zur Längsachse zwischen einer eingefahrenen und einer ausgefahrenen Position verschieblich gelagertes Fingerelement 3 vorgesehen ist, wobei das Fingerelement 3 mit einem im Zentrierelement 2 verschieblich gelagerten, vorzugsweise zylindrisch ausgebildeten Stellglied 4 wirkverbunden ist.The centering clamping device shown in the figures consists in a known manner initially of a housing 1 in which a preferably at least partially hollow cylindrical centering element 2 is mounted displaceably between an open position and a clamping position along a longitudinal axis, with a transverse or perpendicular to the centering element 2 Longitudinal axis between a retracted and an extended position displaceably mounted finger element 3 is provided, wherein the finger element 3 is operatively connected to a preferably cylindrical actuator 4 mounted displaceably in the centering element 2.

Wie oben bereits erwähnt, ist die Maßgabe "ein" Fingerelement 3 so zu verstehen, dass "mindestens ein" Fingerelement gemeint ist, wobei die dargestellten Ausführungsformen jeweils zwei Fingerelemente zeigen. Zur Betätigung des Fingerelements 3 ist dabei in an sich bekannter Weise vorgesehen, dass zwischen dem Fingerelement 3 und dem Stellglied 4 eine Kulissenführung 8 angeordnet ist. Wie sich aus Figur 2 ergibt, ist diese aus einem schräg zur Längsachse verlaufenden Schlitz 8.2, Nut oder dergleichen am Fingerelement 3 und aus einem im Schlitz 8.2 geführten passfederartigen Element 8.1, Zapfen oder dergleichen am Stellglied 4 oder umgekehrt gebildet. Wird also das Stellglied 4 in Figur 2 nach oben verschoben, führt dies dazu, dass das Fingerelement 3 eingefahren wird, und umgekehrt.As already mentioned above, the requirement “one” finger element 3 is to be understood such that “at least one” finger element is meant, the illustrated embodiments each showing two finger elements. To actuate the finger element 3, it is provided in a manner known per se that a link guide 8 is arranged between the finger element 3 and the actuator 4. How out Figure 2 results, this is formed from a slit 8.2, groove or the like running obliquely to the longitudinal axis on the finger element 3 and from a feather key-like element 8.1, pin or the like guided in the slot 8.2 on the actuator 4 or vice versa. So if the actuator is 4 in Figure 2 shifted upwards, this leads to the fact that the finger element 3 is retracted, and vice versa.

Wesentlich für die erfindungsgemäße Zentrierspannvorrichtung ist nun, dass am Zentrierelement 2 eine entweder bei vollständig eingefahrenem Fingerelement 3 eine Relativbewegung zwischen dem Gehäuse 1 und dem Zentrierelement 2 oder bei vollständig ausgefahrenem Fingerelement 3 eine Relativbewegung zwischen dem Zentrierelement 2 und dem Stellglied 4 ausschließende Blockiereinrichtung 5 vorgesehen ist. Wie bereits erläutert, stellt diese Maßgabe sicher, dass eine Kollision zwischen dem Fingerelement 3 und dem einen nach oben stehenden Kragen 9.1 aufweisenden Werkstück 9 vermieden wird, da erfindungsgemäß dafür gesorgt ist, dass das Einfahren und Ausfahren des Fingerelements 3 immer erst in mindestens teilweise ausgefahrener Position des Zentrierelements 2 erfolgt, also dann, wenn das Fingerelement 3 keinen Kontakt mehr zum Werkstück 9 hat.It is now essential for the centering clamping device according to the invention that on the centering element 2, either when the finger element 3 is completely retracted, a relative movement between the housing 1 and the centering element 2 or when the finger element 3 is fully extended, a blocking device 5 excluding a relative movement between the centering element 2 and the actuator 4 is provided. As already explained, this requirement ensures that a collision between the finger element 3 and the workpiece 9, which has an upstanding collar 9.1, is avoided, since according to the invention it is ensured that the retraction and extension of the finger element 3 is always at least partially extended The centering element 2 is positioned, that is, when the finger element 3 is no longer in contact with the workpiece 9.

Bezüglich der vorgenannten, einerseits mit dem Gehäuse 1 und andererseits mit dem Stellglied 4 zusammenwirkenden und am Zentrierelement 2 angeordneten Blockiereinrichtung 5 ist dabei besonders bevorzugt vorgesehen, dass diese ein quer zur Längsachse verschiebbares Blockierelement 5.1 umfasst. Es können dabei, wie dargestellt, auch zwei und mehr dieser Blockierelemente 5.1 vorgesehen sein. Besonders bevorzugt ist vorgesehen, dass das Blockierelement 5.1 als mindestens in eine Raumrichtung einen kreisförmigen Querschnitt aufweisender Körper ausgebildet ist. Ist der Körper als zylinderischer Bolzen ausgebildet, so weist er entsprechend in genau eine Raumrichtung einen kreisförmigen Querschnitt bzw. eine zylindrische Außenkontur auf. Diese Ausführungsform ist nachfolgend nicht extra dargestellt, aber durchaus auch realisierbar und funktionstüchtig. Ist das Blockierelement 5.1, was bevorzugt und dargestellt ist, als Kugel ausgebildet, so hat es in alle Raumrichtungen einen kreisförmigen Querschnitt bzw. eine kugelige Oberfläche.With regard to the aforementioned blocking device 5, which interacts on the one hand with the housing 1 and on the other hand with the actuator 4 and is arranged on the centering element 2, it is particularly preferred that it comprises a blocking element 5.1 that is displaceable transversely to the longitudinal axis. As shown, two or more of these blocking elements 5.1 can also be provided. It is particularly preferably provided that the blocking element 5.1 is designed as a body having a circular cross section at least in one spatial direction. If the body is designed as a cylindrical bolt, it accordingly has a circular cross-section or a cylindrical outer contour in exactly one spatial direction. This embodiment is not shown separately below, but it can also be implemented and is fully functional. If the blocking element 5.1, which is preferred and shown, is designed as a sphere, it has a circular cross-section or a spherical surface in all spatial directions.

Unabhängig von der tatsächlichen äußeren Form des Blockierelements 5.1 ist weiterhin, wie ersichtlich, besonders bevorzugt vorgesehen, dass dieses frei von in seinen Körper eingreifenden Führungselementen ausgebildet ist.Regardless of the actual external shape of the blocking element 5.1, it is furthermore particularly preferred, as can be seen, that it is free of guide elements engaging in its body.

Zur Realisierung der genannten Verschieblichkeit ist dabei am Zentrierelement 2 eine Führung 2.1 für das Blockierelement 5.1 vorgesehen, wobei weiterhin besonders bevorzugt vorgesehen ist, dass eine bzw. die Länge der Führung 2.1 quer zur Längsachse gesehen kürzer als eine entsprechende Länge bzw. als ein entsprechender Durchmesser des Blockierelements 5.1 ausgebildet ist. Diese Maßgabe führt, wie insbesondere aus den Figuren 4 bis 11 ersichtlich, dazu, dass das Blockierelement 5.1 stets mindestens entweder in Kontakt mit dem Gehäuse 1 oder mit dem Stellglied 4 steht.To achieve the above-mentioned displaceability, a guide 2.1 for the blocking element 5.1 is provided on the centering element 2, it is furthermore particularly preferred that one or the length of the guide 2.1 is shorter than a corresponding length or diameter when viewed transversely to the longitudinal axis of the blocking element 5.1 is formed. This stipulation leads, as in particular from the Figures 4 to 11 It can be seen that the blocking element 5.1 is always at least either in contact with the housing 1 or with the actuator 4.

In diesem Zusammenhang ist dabei weiterhin besonders bevorzugt am Gehäuse 1 eine vorzugsweise parallel zur Längsachse verlaufende und vorzugsweise zwei Bahnabschnitte 6.1, 6.2 aufweisende Führungsbahn 6 für das Blockierelement 5.1 vorgesehen, wobei vorzugsweise (je nach Stellung) entweder das mit dem einen Bahnabschnitt 6.1 in Kontakt stehende Blockierelement 5.1 eine Relativbewegung zwischen dem Zentrierelement 2 und dem Stellglied 4 zulassend oder das mit dem anderen Bahnabschnitt 6.2 in Kontakt stehende Blockierelement 5.1 eine solche Bewegung verhindernd ausgebildet ist.In this context, a guide track 6, preferably running parallel to the longitudinal axis and preferably having two track sections 6.1, 6.2, is provided for the blocking element 5.1 on the housing 1, preferably (depending on the position) either the one in contact with the one track section 6.1 Blocking element 5.1 allowing a relative movement between the centering element 2 and the actuator 4 or the blocking element 5.1, which is in contact with the other track section 6.2, is designed to prevent such a movement.

Weiterhin ist, wie bereits aus dem vorgenannten Stand der Technik bekannt, zur beidseitigen Begrenzung der Verschieblichkeit des Stellgliedes 4 zum Zentrierelement 2 eine Anschlagseinrichtung 7 vorgesehen, die aus einem am Stellglied 4 angeordneten Anschlagselement 7.1 und beidseitig des Anschlagselements 7.1 (ober- und unterhalb) am Zentrierelement 2 angeordneten Widerlagern 7.2 gebildet ist. Dabei ist ferner ein parallel zur Längsachse vorhandener Abstand zwischen den beiden Widerlagern 7.2 größer als eine parallel zur Längsachse vorhandene Erstreckung des Anschlagselements 7.1 ausgebildet. Außerdem ist, um die Vorrichtung einfach montieren zu können, das eine Widerlager 7.2 fest, aber lösbar mit dem Zentrierelement 2 verbunden ausgebildet. Ferner ist bevorzugt vorgesehen, dass das Zentrierelement 2 zur Führung des Anschlagselements einen zylindrischen Führungsraum 2.2 aufweist, wobei weiterhin die beiden Widerlager 7.2 vorzugsweise jeweils einen Wandbereich des Führungsraums 2.2 bilden.Furthermore, as already known from the aforementioned prior art, a stop device 7 is provided to limit the displaceability of the actuator 4 to the centering element 2 on both sides, which consists of a stop element 7.1 arranged on the actuator 4 and on both sides of the stop element 7.1 (above and below) on the centering element 2 arranged abutments 7.2 is formed. Furthermore, a distance between the two abutments 7.2 that is parallel to the longitudinal axis is larger than an extension of the stop element 7.1 that is parallel to the longitudinal axis. In addition, in order to be able to assemble the device in a simple manner, the one abutment 7.2 is firmly but detachably connected to the centering element 2. Furthermore, it is preferably provided that the centering element 2 has a cylindrical guide space 2.2 for guiding the stop element, the two abutments 7.2 also preferably each forming a wall area of the guide space 2.2.

Eine weitere bevorzugte Besonderheit der erfindungsgemäßen Lösung besteht ferner darin, dass das Blockierelement 5.1 mit dem (aus dem oben genannten Stand der Technik bekannten) Anschlagselement 7.1 zusammenwirkend ausgebildet ist. Dabei ist weiterhin besonders bevorzugt vorgesehen, dass das Anschlagselement 7.1 in Richtung der Längsachse gesehen zwei Abschnitte 7.1.1, 7.1.2 aufweist.Another preferred special feature of the solution according to the invention is that the blocking element 5.1 is designed to interact with the stop element 7.1 (known from the prior art mentioned above). It is also particularly preferably provided that the stop element 7.1 has two sections 7.1.1, 7.1.2 as seen in the direction of the longitudinal axis.

Noch etwas genauer betrachtet, ist vorgesehen, dass der erste Abschnitt 7.1.1 eine zum Führungsraum 2.2 passende zylindrische Außenkontur aufweist. In anderen Worten ausgedrückt, bedeutet dies, dass der erste Abschnitt 7.1.1 zum Heraushalten des Blockierelements 5.1 aus dem Führungsraum 2.2 ausgebildet ist.Considered even more closely, it is provided that the first section 7.1.1 has a cylindrical outer contour that matches the guide space 2.2. In other words, this means that the first section 7.1.1 is designed to hold the blocking element 5.1 out of the guide space 2.2.

Schließlich ist noch besonders bevorzugt vorgesehen, dass der zweite Abschnitt 7.1.2 als Hyperboloid ausgebildet ist, wobei vorzugsweise ein größter Durchmesser des Hyperboloiden dem Durchmesser des ersten Abschnitts 7.1.1 entspricht, wobei außerdem die Rotationsachse des Hyperboloiden mit der Längsachse des Zentrierelements zusammen fällt. Nochmals in anderen Worten ausgedrückt, ist vorgesehen, dass der zweite Abschnitt 7.1.2 als Führungskurve für das Blockierelement 5.1 ausgebildet ist, wobei der Übergang vom ersten zum zweiten Abschnitt damit zwar nicht stetig (im mathematischen Sinne), aber sprungfrei ausgebildet ist. Die einen kreisförmigen Querschnitt aufweisenden Körper bzw. Kugeln können also gut am Anschlagselement 7.1 entlang gleiten.Finally, it is particularly preferably provided that the second section 7.1.2 is designed as a hyperboloid, with a largest diameter of the hyperboloid preferably corresponding to the diameter of the first section 7.1.1, and in addition the axis of rotation of the hyperboloid coincides with the longitudinal axis of the centering element. Expressed again in other words, it is provided that the second section 7.1.2 is designed as a guide curve for the blocking element 5.1, the transition from the first to the second section thus not being continuous (in the mathematical sense), but without jumps. The bodies or balls, which have a circular cross-section, can therefore slide well along the stop element 7.1.

Die erfindungsgemäße Zentrierspannvorrichtung funktioniert, wie folgt: Ausgangspunkt der Erläuterung ist Figur 4. Dort ist die erfindungsgemäße Zentrierspannvorrichtung in Öffnungsstellung mit aufgelegtem Werkstück 9 (ein Blech mit einer runden Öffnung und einem Kragen 9.1 um die Öffnung) gezeigt. Das Stellglied 4 befindet sich in seiner höchsten Position, wobei der Abschnitt 7.1.1 des Anschlagselements 7.1 das Blockierelement 5.1 nach außen gegen den Bahnabschnitt 6.2 presst und damit eine Relativbewegung (nach unten) zwischen dem Gehäuse 1 und dem Zentrierelements 2 verhindert (nach oben wird eine solche durch geeignete Schultern am Gehäuse 1 und am Zentrierelement 2 verhindert).The centering clamping device according to the invention works as follows: The starting point for the explanation is Figure 4 . There the centering clamping device according to the invention is shown in the open position with the workpiece 9 placed on it (a sheet metal with a round opening and a collar 9.1 around the opening). The actuator 4 is in its highest position, the section 7.1.1 of the stop element 7.1 pressing the blocking element 5.1 outwards against the track section 6.2 and thus preventing a relative movement (downwards) between the housing 1 and the centering element 2 (upwards such a prevented by suitable shoulders on the housing 1 and on the centering element 2).

Figur 5 zeigt den nächsten Stellschritt, bei dem das Stellglied 4 zum Beispiel mit Hilfe eines geeigneten (vergleiche Figur 1 und 3) pneumatischen Antriebs soweit nach unten bewegt wurde, bis der erste Abschnitt 7.1.1 das untere Widerlager 7.2 der Anschlagseinrichtung 7 erreicht. Die besagte Verstellung führt dabei, wie ersichtlich, dazu, dass die beiden Fingerelemente 3, die in Figur 4 noch eingefahren sind, nunmehr ausgefahren werden. Weiterhin zeigt Figur 5, dass in diesem Moment das (mindestens eine) Blockierelement 5.1 (hier also die beiden Kugeln) noch immer eine Relativbewegung zwischen dem Gehäuse 1 und dem Zentrierelement 2 verhindern. Figure 5 shows the next setting step, in which the actuator 4, for example with the help of a suitable (cf. Figures 1 and 3 ) the pneumatic drive has been moved down until the first section 7.1.1 reaches the lower abutment 7.2 of the stop device 7. As can be seen, the aforementioned adjustment leads to the fact that the two finger elements 3, which are shown in FIG Figure 4 are still retracted, are now being extended. Furthermore shows Figure 5 that at this moment the (at least one) blocking element 5.1 (here the two Balls) still prevent a relative movement between the housing 1 and the centering element 2.

Aus den Figuren 6 und 7 ist ersichtlich, wie eine weitere Betätigung bzw. Verstellung des Stellgliedes 4 nach unten dazu führt, dass sich die beiden Kugeln innerhalb der Führung 2.1 nach innen verschieben, und zwar bedingt durch die sich verengende Schulter zwischen den beiden Bahnabschnitten 6.1 und 6.2. Diese Verschiebung innerhalb der Führung 2.1 ist aufgrund der vorzugsweise hyperboloiden Form des zweiten Abschnitts 7.1.2 des Anschlagselements 7.1 möglich. Außerdem zeigt der Vergleich der Figuren 5 bis 7, wie sich das Zentrierelement 2 innerhalb des Gehäuses 1 nach unten bewegt, und zwar ohne dass sich dabei noch die Fingerelemente 3 bewegen.From the Figures 6 and 7 it can be seen how a further downward actuation or adjustment of the actuator 4 results in the two balls moving inward within the guide 2.1, due to the narrowing shoulder between the two track sections 6.1 and 6.2. This shift within the guide 2.1 is possible due to the preferably hyperboloid shape of the second section 7.1.2 of the stop element 7.1. In addition, the comparison of the Figures 5 to 7 how the centering element 2 moves downward within the housing 1 without the finger elements 3 moving.

In Figur 8 ist die Spannstellung dargestellt, bei der die umgekehrt hakenförmigen Fingerelemente 3, die also in ausgefahrenem Zustand zentrier- und blockierelementseitig eine Ausnehmung zur Aufnahme eines Kragens 9.1 eines Werkstücks 9 aufweisen, das Werkstück 9 gegen eine entsprechende Auflage am Gehäuse 1 der Zentrierspannvorrichtung pressen. Wie ersichtlich, bewirken die beiden Körper bzw. Kugeln in dieser Position zusammen mit dem ersten Bahnabschnitt 6.1, dass das Zentrierelement 2 und das Stellglied 4 zueinander fixiert sind, sprich eine Relativbewegung zwischen den beiden ausgeschlossen ist.In Figure 8 the clamping position is shown in which the inversely hook-shaped finger elements 3, which have a recess for receiving a collar 9.1 of a workpiece 9 in the extended state on the centering and blocking element side, press the workpiece 9 against a corresponding support on the housing 1 of the centering clamping device. As can be seen, the two bodies or balls in this position together with the first track section 6.1 have the effect that the centering element 2 and the actuator 4 are fixed to one another, i.e. a relative movement between the two is excluded.

Wird nun also zu einem anderen Zeitpunkt zum Öffnen der Zentrierspannvorrichtung eine nach oben wirkende Kraft auf das Stellglied 4 aufgebracht, führt dies dazu, dass das Zentrierelement 2 nach oben bewegt wird, und zwar ohne dabei die ausgefahrene Stellung der Fingerelemente 3 zu verändern.If an upward force is applied to the actuator 4 at a different point in time to open the centering clamping device, this results in the centering element 2 being moved upward without changing the extended position of the finger elements 3.

Erst, wenn die Körper bzw. Kugeln in den Bereich des zweiten Bahnabschnitts 6.2 gelangen (vergleiche hierzu Figur 9 und 10) und sich entsprechend nach außen bewegen können, wird nicht nur das Zentrierelement 2 nach oben, sondern auch das Stellglied 4 innerhalb des Zentrierelements 2 verstellt, was dann wiederum dazu führt, dass das Einfahren der Fingerelemente 3 beginnt. Ein Verklemmen der umgekehrt hakenförmigen Fingerelemente 3 mit dem Kragen 9.1 kann auf diese Weise wirkungsvoll verhindert werden.Only when the bodies or balls come into the area of the second track section 6.2 (compare with this Figures 9 and 10 ) and can move outwards accordingly, not only the centering element 2 is adjusted upwards, but also the actuator 4 within the centering element 2, which in turn leads to the retraction of the finger elements 3 starting. Jamming of the inversely hook-shaped finger elements 3 with the collar 9.1 can be effectively prevented in this way.

In Figur 11 ist schließlich noch die Situation dargestellt, in der das Blockierelement 5.1 vollständig in Anlage am ersten Bahnabschnitt 6.1 ist, d. h. der erste Abschnitt 7.1.1 des Anschlagselements 7.1 kann sich frei an den Köpern bzw. Kugeln vorbei bewegen, um so, wie dann wieder in Figur 4 dargestellt, die Fingerelemente 3 vollständig einzufahren.In Figure 11 Finally, the situation is shown in which the blocking element 5.1 is completely in contact with the first track section 6.1, ie the first section 7.1.1 of the stop element 7.1 can move freely past the bodies or balls in order to, as then again in FIG Figure 4 shown to retract the finger elements 3 completely.

BezugszeichenlisteList of reference symbols

11
Gehäusecasing
22
ZentrierelementCentering element
2.12.1
Führungguide
2.22.2
FührungsraumLeadership room
33
FingerelementFinger element
44th
StellgliedActuator
55
BlockiereinrichtungBlocking device
5.15.1
BlockierelementBlocking element
66th
FührungsbahnGuideway
6.16.1
erster Bahnabschnittfirst section of the railway
6.26.2
zweiter Bahnabschnittsecond track section
77th
AnschlagseinrichtungStop device
7.17.1
AnschlagselementStop element
7.1.17.1.1
erster Abschnittfirst section
7.1.27.1.2
zweiter Abschnittsecond part
7.27.2
WiderlagerAbutment
88th
KulissenführungScenery guide
8.18.1
passfederartiges Elementfeather key element
8.28.2
Schlitzslot
99
Werkstückworkpiece
9.19.1
Kragencollar

Claims (10)

  1. Centering clamping apparatus comprising a housing (1), in which a centering element (2) is mounted to be displaceable along a longitudinal axis between an open position and a clamping position, wherein a finger element (3), mounted to be displaceable between a retracted position and an extended position transversely to the longitudinal axis, is provided on the centering element (2), wherein the finger element (3) is operatively connected to an adjusting member (4), mounted to be displaceable in the centering element (2),
    characterized in that
    a blocking device (5), which either precludes a relative movement between the housing (1) and the centering element (2) when the finger element (3) is fully retracted, or precludes a relative movement between the centering element (2) and the adjusting member (4) when the finger element (3) fully extended, is provided on the centering element (2).
  2. Centering clamping apparatus according to claim 1,
    characterized in that
    the blocking device (5) comprises a blocking element (5.1) which is displaceable transversely to the longitudinal axis.
  3. Centering clamping apparatus according to claim 2,
    characterized in that
    a guide (2.1) for the blocking element (5.1) is provided on the centering element (2).
  4. Centering clamping apparatus according to claim 3,
    characterized in that
    a length of the guide (2.1) is designed to be shorter than a corresponding length of the blocking element (5.1) when viewed transversely to the longitudinal axis.
  5. Centering clamping apparatus according to one of claims 2 to 4,
    characterized in that
    a guide path (6) for the blocking element (5.1), running preferably parallel to the longitudinal axis and preferably having two path sections (6.1, 6.2), is provided on the housing (1), wherein one blocking element (5.1) contacting the one path section (6.1) is preferably designed to permit a relative movement between the centering element (2) and the adjusting member (4) and one blocking element (5.1) contacting the other path section (6.2) is preferably designed to prevent such a movement.
  6. Centering clamping apparatus according to one of claims 2 to 5,
    characterized in that
    a stop device (7) is provided to limit the displaceability of the adjusting member (4) on both sides to the centering element (2), the stop device (7) being formed from a stop element (7.1), arranged on the adjusting member (4), and abutments (7.2), arranged on the centering element (2) on both sides of the stop element (7.1), wherein the blocking element (5.1) is designed to interact with the stop element (7.1).
  7. Centering clamping apparatus according to claim 6,
    characterized in that
    the centering element (2) has a cylindrical guide space (2.2) for guiding the stop element (7.1).
  8. Centering clamping apparatus according to claim 6 or 7,
    characterized in that
    the stop element (7.1) has two sections (7.1.1, 7.1.2) when viewed in the direction of the longitudinal axis.
  9. Centering clamping apparatus according to claim 7 and 8,
    characterized in that
    the first section (7.1.1) has a cylindrical outer contour matching the guide space (2.2).
  10. Centering clamping apparatus according to claim 8 or 9,
    characterized in that
    the second section (7.1.2) is designed as a hyperboloid, wherein a largest diameter of the hyperboloid preferably corresponds to the diameter of the first section (7.1.1).
EP16766836.7A 2015-08-03 2016-08-02 Centring clamping apparatus Active EP3331664B1 (en)

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DE102015112686.9A DE102015112686A1 (en) 2015-08-03 2015-08-03 Zentrierspannvorrichtung
PCT/DE2016/100352 WO2017020891A1 (en) 2015-08-03 2016-08-02 Centring clamping apparatus

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DE102019121860A1 (en) * 2019-08-14 2021-02-18 Destaco Europe Gmbh Jig
IT202000016900A1 (en) 2020-07-13 2022-01-13 Itecna S P A MODULAR SYSTEM FOR FIXING AND POSITIONING THE CLOSING ANGLE
CN112959120B (en) * 2021-03-31 2022-03-29 深圳市太美亚电子科技有限公司 Rapid centering device for processing cylinder center hole by utilizing handheld electric tool

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CN108136570A (en) 2018-06-08
ES2876330T3 (en) 2021-11-12
US20180154501A1 (en) 2018-06-07
BR112018002389A2 (en) 2018-09-18
US10695893B2 (en) 2020-06-30
RU2721111C2 (en) 2020-05-15
KR20180026490A (en) 2018-03-12
RU2018106025A (en) 2019-09-05
DE102015112686A1 (en) 2017-02-09
RU2018106025A3 (en) 2019-11-22
EP3331664A1 (en) 2018-06-13
MX2018001238A (en) 2018-09-18
MX391843B (en) 2025-03-21
WO2017020891A1 (en) 2017-02-09
SI3331664T1 (en) 2021-08-31
KR102132099B1 (en) 2020-07-09
CN108136570B (en) 2021-03-16

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